BAL500 (500 lumen output) allows fluorescent lighting fixtures to be used for both normal and emergency operation.

In the event of a power failure, the BAL500 switches the fixture to emergency mode and operates one or two of its lamps for a minimum of 90 minutes.

The unit contains a battery, charger, and inverter circuit in a single package. The BAL500 can be mounted in the wireway or on top of the fixture, and is UL listed for factory installation or retrofit applications, as well as damp location listed.